Dramatic vestigialization of floral fragrance across a transition from outcrossing to selfing in Abronia umbellata (Nyctaginaceae)

2013 ◽  
Vol 100 (11) ◽  
pp. 2280-2292 ◽  
Author(s):  
Laura A. D. Doubleday ◽  
Robert A. Raguso ◽  
Christopher G. Eckert
Keyword(s):  
Floral Fragrance ◽  
Abronia Umbellata

scholarly journals Floral fragrance components of Zygopetalum mackayi (Orchidaceae).

1988 ◽  
Vol 52 (6) ◽  
pp. 1599-1600 ◽  
Author(s):  
Kiyoaki TATSUKA ◽  
Masae KOHAMA ◽  
Sachiko SUEKANE
Keyword(s):  
Floral Fragrance

scholarly journals Lilium floral fragrance: A biochemical and genetic resource for aroma and flavor

2016 ◽  
Vol 122 ◽  
pp. 103-112 ◽  
Author(s):  
Timothy S. Johnson ◽  
Michael L. Schwieterman ◽  
Joo Young Kim ◽  
Keun H. Cho ◽  
David G. Clark ◽  
...  
Keyword(s):  
Genetic Resource ◽  
Floral Fragrance

EFFECT OF COMPOSITION OF OLFACTORY CUES ON IMPRESSIONS OF PERSONALITY

1992 ◽  
Vol 20 (3) ◽  
pp. 149-161 ◽  
Author(s):  
Ann Marie Fiore
Keyword(s):  
Personality Traits ◽  
Analysis Of Covariance ◽  
Olfactory Cues ◽  
Single Item ◽  
Floral Fragrance ◽  
Professional Interactions

Ninety female undergraduates participated in an experiment investigating whether composition of three fragrances (perfumes) influenced impressions of personality traits of people who would wear each fragrance. Analysis of covariance with the variance due to liking of the fragrance (a covariate) removed, revealed that fragrance composition influenced impressions of personality. Impressions made of affiliated fragrances (oriental and chypre) were more closely aligned than impression of the dissimilar (floral) fragrance for the multi-item Uninhibited and Traditional Male factors and single item traits such as aggressive, confident, and assertive according to Tukey's tests. The floral fragrance produced significantly (p<.05) lower ratings in these instances. The findings suggest that compositional components of fragrances (olfactory cues) were used in formation of impressions. This has implications for research of the role of olfactory cues in social and professional interactions.

scholarly journals An increase in atypical petal numbers during a shift to autogamy in a coastal sand verbena and potential evolutionary mechanisms

2021 ◽  
Author(s):  
Eric F. LoPresti ◽  
James G. Mickley ◽  
Caroline L. Edwards ◽  
Marjorie G. Weber
Keyword(s):  
Reproductive Traits ◽  
Common Garden ◽  
Developmental Stability ◽  
Great Variability ◽  
Evolutionary Mechanisms ◽  
Science Project ◽  
Public Citizen ◽  
Coastal Sand ◽  
Abronia Umbellata ◽  
Citizen Science Project

AbstractPremiseThe evolution of variation in reproductive traits is of longstanding interest in biology. In plants, meristic traits, such as petal and sepal numbers, are usually considered invariant within taxa. However, certain species consistently exhibit great variability in these traits, though the factors contributing to “atypical” counts are not well-known. The sand verbenas, Abronia (Nyctaginaceae), usually have five perianth lobes (‘petals’) in their fused corollas and are self-incompatible, thus departures from either of these norms in populations, varieties, or species are of evolutionary interest.MethodsTo characterize and understand an increase in atypical petal numbers during a transition from xenogamy (outcrossing) to autogamy (selfing) in the coastal sand verbena Abronia umbellata, we integrated common garden studies with analysis of over 11,000 photographed flowers from iNaturalist, a citizen science project. Here we evaluate several adaptive and nonadaptive explanations for the production of these ‘atypical’ flowers.Key resultsOur photo analysis and common garden show that the nominate xenogamous variety has 5 petals with very little variation, however, an autogamous, geographically separated variety, A. u. var. breviflora has a high preponderance of four-petalled morphs. Flower morph did not affect successful autogamy, and petal numbers were not related to environmental factors, hybridization, or flower size in the ways hypothesized.ConclusionsWe conclude that this loss of petals is consistent with relaxation of selection on petal number in selfers, inbreeding leading to a loss of developmental stability, or correlated selection on another trait. This study strongly demonstrates the power of data available from public citizen databases for easily scored traits, such as petal number.

scholarly journals (138) Guam Native Trees and Shrubs for the Landscape

HortScience ◽  
2005 ◽  
Vol 40 (4) ◽  
pp. 996A-996
Author(s):  
James McConnell
Keyword(s):  
Flower Color ◽  
Floral Fragrance ◽  
Native Trees ◽  
Trees And Shrubs

Plants native to Guam are being evaluated for use in the Guam landscape. The selected plants are being propagated by seed and/or cutting. The genera currently being evaluated and propagated include Scaevola, Eleaocarpus, Ochrosia, Guamia, Pemphis, and Bikkia. Variation in flower color and floral fragrance were observed in Scaevola and selections have been made. There has been some difficulty establishing some of the plants in the landscape environment. There have been some significant insect problems occurring on established plants.

Sign in / Sign up

Export Citation Format

Share Document